As I stated in my initial post I know nothing of ribavirin effects on herpes virus. I do know that it is a nucleotide mimic and acts to insert mutations into RNA virus during replication. My taking ribavirin was in relation to being treated for hepatitis C and my therapy was experimental and lasted 100 weeks. Many HCV patients will take ribavirin for 24-48 weeks dependent on genotype. For herpes its anyones guess but the cautions on birthdefects and the absolute need to use birth control with both partners still stands. Hemolytic anemia typically takes about 3-6 weeks to fully manifest itself in the typical patient.